摘要
本研究对烟粉虱在诸城烟田的发生危害和垂直分布情况进行了调查。结果表明,烟粉虱成虫于当年5月底至6月初在田间开始零星发生;随着气温升高,粉虱种群数量逐渐上升,7月底时,种群数量达到高峰期;8月上旬,由于降雨、施药等因素,烟粉虱成虫数量出现明显下降;8月中旬至9月上旬温湿度条件仍然较适合于粉虱繁殖,田间种群数量仍较大。烟粉虱垂直分布情况为,烟粉虱成虫主要分布在上部叶片,其次为中部叶片,下部叶片分布最少;烟粉虱若虫从发生初期到7月中旬主要分布在中部叶片,从7月下旬到烟叶采收主要分布在上部叶片。该结果为了解烟粉虱发生危害并制定相应的防治措施具有重要借鉴意义。
The occurrence dynamics and vertical distribution of tobacco whitefly in Zhucheng tobacco area were investigated. The tobacco whitefly adults occurred sporadically from the end of May to the early of June. Then the population quantity rose gradually along with the temperature rising and reached the peak at the end of July. In early August,the tobacco whitefly adult quantity declined obviously due to rainfall and insecticide. The temperature and humidity conditions from the middle of August to the early of September were still suitable for the tobacco whitefly reproduction,thus the population quantity was still large. The vertical distribution of tobacco whitefly was that the adults mainly distributed on the upper leaves,followed by middle leaves,and the lower leaves had the least. The tobacco whitefly nymphs mainly distributed on the middle leaves from early stage to the middle of July,then on the upper leaves from the end of July to tobacco harvest.This results had a very important significance for understanding the occurrence dynamics of tobacco whitefly and formulating corresponding prevention measures.
出处
《山东农业科学》
2016年第5期102-104,共3页
Shandong Agricultural Sciences
基金
中国烟草总公司山东省公司科技重大专项"卷烟导向型山东特色优质烟叶开发"[鲁烟科(2014)号]
关键词
诸城
烟田
烟粉虱
发生动态
垂直分布
Zhucheng
Tobacco area
Tobacco whitefly
Occurrence dynamics
Vertical distribution
